VDB

CVE-2023-53504

CVE-2023-53504 PUBLISHED CVSS 7.8 HIGH

RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF

Reported by linux · Published October 1, 2025

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF ib_dealloc_device() should be called only after device cleanup. Fix the dealloc sequence.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
linux_kernellinux6.4.11

Risk scores

CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersions
LinuxLinux6d758147c7b80a46465f72e9e6294d244ee98a21, 6d758147c7b80a46465f72e9e6294d244ee98a21
LinuxLinux6.3, 0, 6.4.11
LinuxLinux6d758147c7b80a46465f72e9e6294d244ee98a21, 6.5, 6.3
linuxlinux_kernel6.3, 6.3

Timeline

  • Oct 1, 2025 CVE Published
  • Oct 2, 2025 Coalition ESS Score (14 in total, the first dated here)
  • Oct 8, 2025 EPSS Score (29 in total, the first dated here)
  • Oct 12, 2025 PoC Published (6 in total, the first dated here)
  • Jan 24, 2026 Security Advisory (43 in total, the first dated here)
  • Oct 7, 2026 Distribution Patch (33 in total, the first dated here)

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References

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